Gut the Session interface

internal/smtp/sender.go

@@ -3,19 +3,17 @@ package smtp
 import (
 	"fmt"
 	"io"
+
+	"ur.gs/crockery/internal/store"
 )
 
-type Sender struct{}
-
-func (s *Sender) Name() string {
-	return "submission-starttls"
+// Submission requires the sender to be logged in, so this struct tracks the
+// logged-in account per-session
+type sender struct {
+	msa     *msa
+	account *store.Account
 }
 
-// We're looking for the email to be from a logged-in account, to anywhere
-// on the internet - including locally!
-//
-// Should we handle local delivery differently to remote delivery, or connect
-// to ourselves, i.e., from submission, to smtp?
-func (s *Sender) Send(from string, to []string, reader io.Reader) error {
+func (s *sender) ServeSMTP(from string, to []string, r io.Reader) error {
 	return fmt.Errorf("Not yet implemented")
 }